| 超支化无皂硅丙乳液合成与性能研究 |
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| 引用本文： | 李锐,吕维华,杨兴锴,杨智,索陇宁,伍家卫.超支化无皂硅丙乳液合成与性能研究[J].中国建材科技,2014(5):100-103. |
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| 作者姓名： | 李锐 吕维华 杨兴锴 杨智 索陇宁 伍家卫 |
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| 作者单位： | 兰州石化职业技术学院; |
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| 基金项目： | 兰财建[2010]122号(2010-1-219);甘教技[2011]44号(1115-01) |
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| 摘 要： | 报道了以四甲基四乙烯基环四硅氧烷和乙烯基三甲氧基硅烷为硅源,与甲基丙烯酸甲酯、甲基丙烯酸(钠)和烯丙基羟乙基醚在无乳化剂情况下进行乳液聚合,得到超支化无皂硅丙乳液;红外光谱确定环硅烷已开环聚合,且与其它单体共聚;讨论了开环无规共聚法和开环核壳共聚法两种工艺对乳液凝胶率、粒径、热稳定性的影响,通过粒径分析、热重分析和TEM分析表明核壳共聚法得到的乳液凝胶率低0.12%、粒径小70nm、最大热分解失重峰504.5℃,乳液稳定性好。
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| 关 键 词： | 无皂 硅丙乳液 核壳 |
Study on the performance and-preparation of the hyperbranched emulsifier-free silicone-acrylic emulsion |
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| Abstract: | The method that the hyperbranched emulsifier-free silicone-acrylic emulsion was made by tetravinyl tetramethylcyelo tetrasiloxane, vinyltrimethoxysilane,2-allyloxyethanol and methyl methacrylate without emulsifier was reported. FT- IN showed that silicon-oxygen rings were opened and all monomers had participated in the copolymerization.Effects of two kinds of polymerization process on coagulum, particle size and thermal stability were discussed.The core-shell emulsion was better than random copolymer emulsion.Its coagulum was 0.12%,average particle size was 70nm by particle size analyzer and TEM,the weight loss peak was 504.5℃ by thermal gravimetric analysis.The emulsion stability was better. |
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| Keywords: | emulsifier-free silicone-acrylicemulsion core-shell |
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